package com.evan.design.principle.singleresponsibility.v2.interfaces;

/**
 * @author :liujiapeng01
 * @date :2019-03-20 20:06
 **/
public class CourseImpl implements ICourseContent,ICourseManager {
    @Override
    public String getCourseNmae() {
        return null;
    }

    @Override
    public byte[] getCourseVideo() {
        return new byte[0];
    }

    @Override
    public void studyCourse() {

    }

    @Override
    public void refundCourse() {

    }
}
